(Bulletin of Atomic Scientists) – Scientists say mirror image versions of life are possible: organisms built on molecules that, for example, don’t use the normal “right-handed” DNA of life on Earth, but a synthesized “left-handed” DNA instead.

Although the capability to create organisms or bacteria that utilize mirror molecules remains at least a decade away by many estimations, 38 authors of an article published in Science Thursday said that investigation into creating such “mirror life” should not be pursued. The authors said they “were initially skeptical that mirror bacteria could pose major risks,” but have since grown “deeply concerned.” (Read More)